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Marina86 [1]
3 years ago
11

I need help for the first two questions can someone help me please

Biology
2 answers:
AlekseyPX3 years ago
8 0

Answer:

Q9: b); Q10: b)  

Explanation:

Q9

b) is correct.

The molecules move faster.

They spread out and take up more space.

The same mass is in a larger volume, so the density decreases.

a) is wrong. The molecules move further apart.

c) is wrong. The density decreases.

Q10

b) is correct.

A gas flows from an area of high pressure to one of low pressure.

The greater the difference, the faster it flows,

Kryger [21]3 years ago
7 0

Answer:

9) b

10) b

Explanation:

9) The heat causes the molecules to expand causing the air to be less dense because each molecule uses more space.

10) The bigger the difference between the air pressures, the faster the air moves.

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